What does '0.025mm oversized' mean for these rod bearings?

This means the bearings are slightly larger than standard size by 0.025mm. They are intended for use when your engine's crankshaft journals have been machined down to a specific undersize during an engine rebuild. This allows you to achieve the correct oil clearance.

Are these bearings suitable for a stock engine rebuild?

While these are high-performance bearings, they can be used in a stock rebuild if your crankshaft journals have been machined to the correct size for the 0.025mm oversize. For a completely stock rebuild without journal machining, you would typically use standard size bearings.

What is the overlay on these ACL bearings?

The overlay is a tough, wear-resistant layer applied to the bearing surface. It helps protect the bearing material from the rotating crankshaft, especially under higher loads and temperatures common in performance applications.

ACL K20A2/K24A Rod Bearing Set 4B1972H-.025

Name: ACL Acura/Honda K20A2/K24A 0.025mm Oversized High Performance Rod Bearing Set
Brand: ACL
SKU: acl-acl-acura-honda-k20a2-k24a-0-025mm-oversized-high-performance-rod-bearing-se-t14-12945
Price: 51.74 USD
Availability: InStock

ACL Acura/Honda K20A2/K24A 0.025mm Oversized High Performance Rod Bearing Set

$51.74

Only 8 left in stock

ACL K20A2/K24A 0.025mm Oversized High Performance Rod Bearing Set for Acura and Honda.

Key Features

Fits Acura RDX (2007-2012), RSX (2002-2006), TSX (2004-2008), Honda Accord (2003-2007), CR-V (2002-2009), and Element (2003-2011).
0.025mm oversized to accommodate machined crankshaft journals.
High-performance overlay designed for demanding engine applications.
Multi-layer bearing construction for durability and wear resistance.
Manufactured by ACL, a well-known engine bearing specialist.

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Will this fit your vehicle?

Product Details

When you're rebuilding or upgrading your Acura or Honda K-series engine, especially the K20A2 or K24A, getting the bearing clearances just right is critical. These ACL rod bearings are manufactured to tight tolerances, measuring 0.025mm oversized to help you achieve optimal oil clearance when your crankshaft journals have been machined down. ACL has been a well-known name in engine bearings for a long time, and they build these with a high-performance overlay to handle the demands of a performance engine.

These bearings feature a multi-layer design with a tough overlay that resists wear and provides a solid surface for the crankshaft to spin against. The 0.025mm oversize means they're intended for use after your connecting rods have been honed to match this specific size, which is a common practice when rebuilding an engine to ensure proper oil flow and bearing life. If you're aiming for a precise engine build, these bearings are a solid choice to help you get your clearances dialed in.

When installing rod bearings, it's important to ensure your crankshaft journals are clean and properly sized. Always refer to your vehicle's service manual or a trusted engine builder's guide for the correct installation procedures and torque specifications.